<!DOCTYPE html>
<html class="reftest-wait">

<head>
<meta charset="utf-8">
<title>CSS Test: Masonry grid container size changes when item sizes change</title>
<link rel="author" title="Brandon Stewart" href="mailto:brandonstewart@apple.com">
<link rel="help" href="https://drafts.csswg.org/css-grid-3">
<link rel="match" href="masonry-track-sizing-check-grid-height-on-resize-ref.html">
<meta name="assert" content="Test passes if when the size of an item in the masonry grid changes, the grid container is properly resized">
</head>

<style>
  grid {
    display: inline-grid;
    grid-template-rows: masonry;
    grid-template-columns: auto;
    grid-gap: 10px;
    border: 10px;
    border-style: solid;
  }
  item {
    background-color: grey;
    height: 250px;
    width: 250px;
  }
</style>
</head>
<body>
  <grid>
    <item>1</item>
    <item>2</item>
  </grid>
</body>
<script>
    document.body.offsetHeight; // Force a relayout
    var gridItem = document.querySelector('item');
    gridItem.style.height = '125px';
    gridItem.style.width = '300px';
    document
    document.documentElement.className = '';
</script>
</html>
